F118 engine qualified
A nut having 12 drive points, 24 sides, and an integral washer which extends beyond the points or periphery. An integral feature is incorporated for locking on the threads of a mating member.
Classification: Nuts of iron or steel
NSN 4140-01-125-5187
NSN 6685-00-838-7429
NSN 6105-00-306-0913
NSN 5990-01-089-9694
NSN 6150-01-360-0444
NSN 6610-01-277-6333
NSN 6610-01-088-5871
NSN 5996-01-399-6677
NSN 5999-01-315-5434
NSN 6105-01-595-5868
NSN 6240-01-562-1473
NSN 6130-00-181-9507